. >>> also new reports that the crash that killed actor paul walker may have been caused by a mechanical failure. actor vin diesel walker's costar in the fast and furious movies, he went to the crash site last night paying his respects to his friend. walker was riding in a porsche carrera gt. tmz is reporting that car may have been leaking steering fluid, which may explain how the driver may have lost control. the car slammed into a tree and hit a street lamp, then burst into flames. authorities also say speed may have been a factor. >>> a car salesman in hayward is still in disbelief after a man posing as a potential buyer drove off the lot in a luxury suv. the man and a friend walked on to the lot of empire auto sunday afternoon and said they were interested in a 2004 range rover, wanted to take it for a test drive. the salesman said he asked for a driver's license and when one of the men walked away to get it, the other man shoved him, jumped in the suv and sped off. >> i was shocked, you know, and it happened. i couldn't believe it, but it did. >> the salesman wasn't seriously hurt.